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Cheap flights from Washington, D.C. Dulles Intl Airport to Knock from $998

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Knock departing on 9/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Knock

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:45 pm - 12:35 pm
IAD
-
NOC
15h 50m
2 stops
Multiple Airlines Logo
1:05 pm - 11:21 am
NOC
-
IAD
27h 16m
2 stops
$998Multiple Airlines
Tue, Sep 1 - Fri, Sep 11
Aer Lingus Logo
5:15 pm - 12:35 pm
IAD
-
NOC
14h 20m
2 stops
Aer Lingus Logo
1:05 pm - 8:20 pm
NOC
-
IAD
12h 15m
1 stop
$1,055Aer Lingus
Tue, Sep 1 - Fri, Sep 11
Aer Lingus Logo
5:45 pm - 12:35 pm
IAD
-
NOC
13h 50m
1 stop
Aer Lingus Logo
1:05 pm - 8:20 pm
NOC
-
IAD
12h 15m
1 stop
$1,072Aer Lingus
Tue, Sep 1 - Fri, Sep 11
Multiple Airlines Logo
3:45 pm - 12:35 pm
IAD
-
NOC
15h 50m
2 stops
Multiple Airlines Logo
1:05 pm - 3:24 pm
NOC
-
IAD
31h 19m
2 stops
$1,077Multiple Airlines
Wed, Jul 8 - Wed, Jul 15
Multiple Airlines Logo
8:18 am - 12:35 pm
IAD
-
NOC
23h 17m
2 stops
Multiple Airlines Logo
1:05 pm - 3:24 pm
NOC
-
IAD
31h 19m
2 stops
$1,100Multiple Airlines
Thu, Jul 9 - Thu, Jul 16
Multiple Airlines Logo
6:20 pm - 12:25 pm
IAD
-
NOC
13h 05m
1 stop
Multiple Airlines Logo
1:00 pm - 3:35 pm
NOC
-
IAD
31h 35m
1 stop
$1,122Multiple Airlines
Sun, Nov 8 - Sat, Nov 14
Aer Lingus Logo
9:00 pm - 12:25 pm
IAD
-
NOC
34h 25m
2 stops
Aer Lingus Logo
1:00 pm - 3:35 pm
NOC
-
IAD
31h 35m
2 stops
$1,126Aer Lingus
Sun, Nov 8 - Sat, Nov 14
Aer Lingus Logo
5:45 pm - 12:35 pm
IAD
-
NOC
13h 50m
1 stop
Aer Lingus Logo
1:05 pm - 3:50 pm
NOC
-
IAD
31h 45m
1 stop
$1,135Aer Lingus
Wed, Jul 8 - Wed, Jul 15
British Airways Logo
6:20 pm - 12:25 pm
IAD
-
NOC
13h 05m
1 stop
British Airways Logo
1:00 pm - 7:21 pm
NOC
-
IAD
35h 21m
2 stops
$1,149British Airways
Sun, Nov 8 - Sat, Nov 14
Aer Lingus Logo
5:45 pm - 12:35 pm
IAD
-
NOC
13h 50m
1 stop
Aer Lingus Logo
1:05 pm - 3:45 pm
NOC
-
IAD
31h 40m
2 stops
$1,163Aer Lingus
Wed, Jul 8 - Wed, Jul 15

Aer Lingus flights from Washington, D.C. Dulles Intl Airport to Knock

Our best Aer Lingus deals on Washington, D.C. Dulles Intl Airport to Knock flight tickets
Aer Lingus
Sep 1
IAD5:15 pmWashington, D.C. Dulles Intl
14h 20m
2 stops
NOC12:35 pmKnock Intl
Sep 11
NOC1:05 pmKnock Intl
12h 15m
1 stop
IAD8:20 pmWashington, D.C. Dulles Intl
$1,055
Aer Lingus
Sep 1
IAD5:45 pmWashington, D.C. Dulles Intl
13h 50m
1 stop
NOC12:35 pmKnock Intl
Sep 11
NOC1:05 pmKnock Intl
12h 15m
1 stop
IAD8:20 pmWashington, D.C. Dulles Intl
$1,072
Aer Lingus
Nov 8
IAD9:00 pmWashington, D.C. Dulles Intl
34h 25m
2 stops
NOC12:25 pmKnock Intl
Nov 14
NOC1:00 pmKnock Intl
31h 35m
2 stops
IAD3:35 pmWashington, D.C. Dulles Intl
$1,126

British Airways flights from Washington, D.C. Dulles Intl Airport to Knock

Our best British Airways deals on Washington, D.C. Dulles Intl Airport to Knock flight tickets
British Airways
Nov 8
IAD6:20 pmWashington, D.C. Dulles Intl
13h 05m
1 stop
NOC12:25 pmKnock Intl
Nov 14
NOC1:00 pmKnock Intl
35h 21m
2 stops
IAD7:21 pmWashington, D.C. Dulles Intl
$1,149
British Airways
Jul 6
IAD7:15 pmWashington, D.C. Dulles Intl
12h 20m
1 stop
NOC12:35 pmKnock Intl
Jul 14
NOC1:05 pmKnock Intl
12h 15m
1 stop
IAD8:20 pmWashington, D.C. Dulles Intl
$1,522
British Airways
Jul 6
IAD5:45 pmWashington, D.C. Dulles Intl
13h 50m
1 stop
NOC12:35 pmKnock Intl
Jul 13
NOC1:05 pmKnock Intl
35h 29m
2 stops
IAD7:34 pmWashington, D.C. Dulles Intl
$1,532

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Knock that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated May 26, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Knock that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Tue 9/1

3:45 pm-12:35 pm

2 stops15h 50m

Knock Intl

Fri 9/11

1:05 pm-11:21 am

2 stops27h 16m

$998

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Tue 9/1

5:15 pm-12:35 pm

2 stops14h 20m

Knock Intl

Fri 9/11

1:05 pm-8:20 pm

1 stop12h 15m

$1,055
Quickest round-trip

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Tue 9/1

5:45 pm-12:35 pm

1 stop13h 50m

Knock Intl

Fri 9/11

1:05 pm-8:20 pm

1 stop12h 15m

$1,072

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Wed 7/8

3:45 pm-12:35 pm

2 stops15h 50m

Knock Intl

Wed 7/15

1:05 pm-3:24 pm

2 stops31h 19m

$1,077

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Thu 7/9

8:18 am-12:35 pm

2 stops23h 17m

Knock Intl

Thu 7/16

1:05 pm-3:24 pm

2 stops31h 19m

$1,100

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Sun 11/8

6:20 pm-12:25 pm

1 stop13h 05m

Knock Intl

Sat 11/14

1:00 pm-3:35 pm

1 stop31h 35m

$1,122

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Sun 11/8

9:00 pm-12:25 pm

2 stops34h 25m

Knock Intl

Sat 11/14

1:00 pm-3:35 pm

2 stops31h 35m

$1,126

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Wed 7/8

5:45 pm-12:35 pm

1 stop13h 50m

Knock Intl

Wed 7/15

1:05 pm-3:50 pm

1 stop31h 45m

$1,135

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Sun 11/8

6:20 pm-12:25 pm

1 stop13h 05m

Knock Intl

Sat 11/14

1:00 pm-7:21 pm

2 stops35h 21m

$1,149

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Wed 7/8

5:45 pm-12:35 pm

1 stop13h 50m

Knock Intl

Wed 7/15

1:05 pm-3:45 pm

2 stops31h 40m

$1,163

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Knock from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Knock

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to Knock?

Delta, American Airlines and United Airlines are the top three most popular airlines that fly to Knock from Washington, D.C. Dulles Intl Airport according to our data. Delta is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Knock. Keep in mind that there are 3 different airlines that fly to Knock on a routine basis, so you have a few additional options to choose from.

When to book flights from Washington, D.C. Dulles Intl Airport to Knock

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Knock according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Knock (IAD to NOC) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Knock

Fastest flight time

13h 05m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Knock takes 13h 05m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Knock. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Knock.
Search flight deals

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Knock

  • How far is Washington, D.C. Dulles Intl to Knock Intl by plane?

    The distance between Washington, D.C. Dulles Intl and Knock Intl is about 3280.8 mi. 13h 05m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Knock Intl Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Knock Intl Airport were last updated today.

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Knock Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to Knock Intl Airport.

  • What documentation or ID do you need to fly to Knock Intl Airport?

    The required travel and health documents for your Knock Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Knock Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Knock?

Book flights to Knock if you plan to visit one of these locations
Sligo
Westport
Newport
Carrick-on-Shannon

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Knock?

Finding the right flight to Knock from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Knock quick and easy, saving you time and money.

Can I find flights from Washington, D.C. to Knock with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington, D.C. to Knock flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Knock?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Knock.

I’m not ready to book a flight from Washington, D.C. to Knock right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington, D.C. to Knock now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Knock and let you know when they change.

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